John, agree that this has been a great series.
But...also have to disagree about in-car hand signal. I have had two distinct instances in the past couple years where my vigorous in-car hand waving (with my right hand) has kept a following car from plowing me. Both involved following cars tucked up close, once being a spinning car directly in front of me and the second when I missed a shift. After both races, the following driver told me he appreciated the warning.
A point-by is much different from a vigorous wave.